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sqlite alter table add MULTIPLE columns in a single statement
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No, you have to add them one at a time. See the syntax diagram at the top of SQLite's ALTER TABLE documentation:
There's no loop in the ADD branch so no repetition is allowed.
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What are the differences between json and simplejson Python modules?
...ent simplejson modules. Why would use these alternatives, instead of the one in the Standard Library?
13 Answers
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Html.Partial vs Html.RenderPartial & Html.Action vs Html.RenderAction
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In the snippet above, both calls will yield the same result.
While one can store the output of Html.Partial in a variable or return it from a method, one cannot do this with Html.RenderPartial.
The result will be written to the Response stream during execution/evaluation.
This also appl...
How to get the pure text without HTML element using JavaScript?
...ce(/<[^>]*>/g, "");
}
// Gabi's elegant approach, but eliminating one unnecessary line of code:
function gabi_content() {
var element = document.getElementById('txt');
element.innerHTML = element.innerText || element.textContent;
}
// and exploiting the fact that IDs pollute the win...
Permanently Set Postgresql Schema Path
...l be looked up for tables. So if you have the same table name in more than one schema among the defaults, there will be no ambiguity, the server will always use the table from the first schema you specified for your search_path.
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c# open a new form then close the current form?
...ent delegate signature describes their types, the types are not given (Someone please correct my wording if need be). // Overall its just a tricky way to not have to declare an entire function (event handler) outside of the current one that handles Form2.Closed event.
– KDecker...
bind event only once
...example, when you bind something to document, you want to unbind only that one event, not all of them.
– Mārtiņš Briedis
Jul 20 '15 at 7:41
26
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How to set a default value for a datetime column to record creation time in a migration?
...b.com/FooBarWidget/default_value_for.
The default_value_for plugin allows one to define default values for ActiveRecord models in a declarative manner. For example:
class User < ActiveRecord::Base
default_value_for :name, "(no name)"
default_value_for :last_seen do
Time.now
end
end
u...
Best way to parse RSS/Atom feeds with PHP [closed]
... used the SimpleXML functions built in to PHP to parse XML documents. It's one of the few generic parsers out there that has an intuitive structure to it, which makes it extremely easy to build a meaningful class for something specific like an RSS feed. Additionally, it will detect XML warnings and ...
What is the difference between == and Equals() for primitives in C#?
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Remember that, in the code of the question, if one changes int age = 25; to const int age = 25;, then the outcome will change. That is because an implicit conversion from int to short does exist in that case. See Implicit constant expression conversions.
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